California Water Service Set to Begin Water Infrastructure Upgrades to Improve Water System in Oroville

OROVILLE, Calif.—California Water Service (Cal Water) will soon begin work on a water infrastructure upgrade to enhance water supply reliability and fire protection for customers in Oroville.

Crews will begin construction in May to install 2,300 feet of new 12-, 8-, and 6-inch water main in central Oroville on:

• Norton Street, between Bridge and Montgomery streets
• Montgomery Street, between Norton Street and Linden Avenue
• Center Street, between Norton Street and Linden Avenue

“Upgrades like this are what help strengthen our water system and have kept us serving our customers’ everyday and emergency needs for 100 years,” said Loni Lind, Cal Water’s Oroville Local Manager. “Our proactive efforts to modernize our infrastructure help us continue to evolve and improve the way in which we serve, so that we can continue delivering safe, clean, and reliable water—both now and for future generations.”

Crews are working on the project, which is expected to be completed by September, from 7 a.m. to 5 p.m., Monday through Friday. Customers will be notified of any temporary traffic impacts or service interruptions that may occur as a result of this work at least 48 hours in advance.

Temporary asphalt will be applied until permanent paving is completed, which can be up to 30 days after project completion.

The main replacement is part of Cal Water’s broader commitment to proactive, ongoing maintenance and upgrades that support safe, high-quality drinking water.

About California Water Service

California Water Service provides high-quality, reliable water utility services to about 11,100 people through 3,560 service connections in Oroville, and more than 2 million people through 500,000 service connections statewide. Cal Water’s purpose is to enhance the quality of life for customers and communities. To do so, it invests responsibly in water and wastewater infrastructure, sustainability initiatives, and community well-being. The company’s 1,200 employees live by a set of strong core values and share a commitment to protecting the planet, caring for people, and operating with the utmost integrity. The utility, commemorating a century of service this year, has been named one of “America’s Most Responsible Companies” and one of the “World’s Most Trustworthy Companies” by Newsweek, a USA Top Workplace, and a Great Place to Work®. More information is available at www.calwater.com.

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Released April 30, 2026